Start Of Packet - Comtech EF Data CDM-800 Installation And Operation Manual

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CDM-800 Gateway Router
Serial-based Remote Product Management

Start of Packet

<
ASCII code 60
(1 character)
 
Packet Example: 
 
Start of Packet
>
ASCII code 62
(1 character)
 
Packet Example: 
 
Detailed description of the packet components follow. 
6.2.2.1
Start of Packet
Controller‐to‐Target: This is the character '<' (ASCII code 60). 
 
Target‐to‐Controller: This is the character '>' (ASCII code 62). 
 
The '<' and '>' characters indicate the start of packet. They may not appear anywhere else within the body of the message. 
 
Controller-to-Target (Issued Command or Query)
Target Address
Address Delimiter
0000 (default)
/
ASCII code 47
(4 characters)
(1 character)
<0000/RSH=30[cr] 
Target-to-Controller (Response to Command or Query)
Target Address
Address Delimiter
0000 (default)
/
ASCII code 47
(4 characters)
(1 character)
>0000/BBU=107[cr][lf] 
Instruction Code
Code Qualifier
= or ?
ASCII codes 61 or 63
(3 characters)
(1 character)
Instruction Code
Code Qualifier
= or ?
ASCII codes 61 or 63
(3 characters)
(1 character)
6–4
Revision 1
MN-CDM800
Optional Arguments
End of Packet
Carriage Return
ASCII code 13
(n characters)
(1 character)
Optional Arguments
End of Packet
Carriage Return
ASCII code 13
(n characters)
(1 character)

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